//
//  NSObject+SafeNil.h
//  DK_TestApp
//
//  Created by DK on 2017/4/7.
//  Copyright © 2017年 ChunYu. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface NSObject (SafeNil)
+ (void)swizzleSEL:(SEL)originalSEL withSEL:(SEL)swizzledSEL;
@end
